A lot of children afraid of falling asleep in total darkness. That is why very frequently they ask their parents to leave the light on in their bedroom. Some parents use special dim lights or special night light that are quite fine and usually do not cause any problems of disturbances. However, according to the studies of American and Japanese scientists, if a child sleeps with the regular, bright light, sooner or late this habit will have certain unwanted negative side effects on the child’s sleep routine and mental condition.

According to the findings of this research, the first negative effects of sleeping with the bright light one are developing sleep disorders, lower quality of sleep and sleep cycle irregularities, as well as hyperactivity, irritability, etc. Another study carried out by the specialists at the Scheie Eye Institute in Pennsylvania showed that the children who have a habit of sleeping with regular bright light have higher risks of being shortsighted. The experiments involving 480 children from 2 to 16 years old proved that sleeping with the light on is linked to 20% more increased risks of becoming shortsighted.

Finally, the specialists from Ohio University found out that the habit of sleeping with bright light on is also quite dangerous for adult people. The two-week experiment demonstrated that those adults who enjoy sleeping with the lights on have much higher risks to develop depression and other related psychological conditions. At that, in women these risks increase up to 30%. The specialists underline that similar effects can be received watching too much of TV programs before going to sleep. Therefore, they highly recommend avoid placing a TV in the bedroom.